Fuel injection actuator of 1 FAI system is a power nozzle. Power nozzle can directly convert electric energy into mechanical energy. FAI power nozzle is driven by electric pulse (PWM) and sprays atomized fuel with mechanical energy.
2.FAI power nozzle contains many technical breakthroughs, and its basic feature is that it contains an independent free armature, so it is called free armature injection technology: (free armature injection -FAI). The invention of FAI technology greatly reduced the manufacturing difficulty of power nozzle and the cost.